Bleaching composition.



AUGUST E. NIENSTADT, or NEWARK, NEW JERSEY, ASSIGNOR or FIFTY+ o E ONE-HUNDREDTHS To GEORGE W.

NEW YORK.

Ala 817,267.

To all whom it may concern:

Be it lmown that 1, AUGUST E. NIEN- STADT, a citizen of the United States of America, and a resident of Newark, county of Essex, and State of New Jersey, have invented certain new and useful Im rovements in Bleaching Compositions, of w 'ch the following is a specification. I

This invention .has reference to a novel bleaching composition adapted to be used in the arts and trades for bleaching goods, and especially fabrics.

A particular application of the bleaching composition is its use as a' household commodity for bleaching the Wash during the process of cleaning same. a

The principal active agent in the novel bleaching composition is peroxid of sodium. This consists of two atoms of sodium and two atoms of oxygen. It is well known that this chemical compound is easily decomposed-by water or moisture,when sodium hydroxid is v formed and oxygen set at liberty. This oxygen naturally appearsin the nascent state and acts very powerfully. Infact, the action of this'oompound is so great that there is danger of ignition. most instances the powerfulaction of the compound is undesirable and uncontrollable, the oxidation in many instances being carried too far: In or-' .der to overcome-the described deficiencies of the peroxid of sodiumfor the purpose of bleaching, same is mixed with other substances tending to retard its'action and making its action controllable. The retardation of the action of the per'oxid of sodium insures a uniform effect on the fabrics to be bleached. Assumin that the wash while bein cleaned to be b eached, then asubstance s ould be admixed with peroxid. of sodium, which acts as a' retarding medium and'has at the same time a cleanin effect. Such a substance is anhydrous car onate of sodium, or, as it is commercially termed, soda-ash. It is of course und'erstoodthat all carbonates of thea or economical *and commercial 'reasons.

Peroxid of sodium and the soda-ash may be Specification of Letters Patent.

Application filed June 7, 1904. Serial No. 211,474.

requirements.

mixed in various proportions, according to Bremen-"m2. oomPosn IoN.

Patented April 10, 1 906.

For bleaching the Wash, however, I prefer to compound one part of peroxid ofsodium with four parts of soda-ash.

This composition has given very satisfactory results and permits of selling the article at a reasonable price, so that it of everybody. p 7

The new bleaching composition may be applied in various ways. If the wash is not soiled too much, some of the bleaching compositiommay be dissolved in the Water. in Whichthe Wash-is soaked over night. The bleaching composition may also be added to the water in the 'washboiler. However, it is is the reach best to add it to the clean rinsin -water, thus bleaching the wash after it. has een'washed and boiled. Then-the wash is clean and L easily bleached, while soiled and greasy spots will not bleach well, because the bleaching agent does not reach the actual fiber.

perior to other bleaching agents, particularly rrEn srArEsiPArENr OE IOE.

KUCHLER, OF NEW ROCHELLE,

. This novel bleaching composition is far su-' such substancesas evolve chlorin. The oxygen from my novel composition acts in state nascendt and does not produce any injurious efli'ect on the Wash, while chlorin 1s hable to do so.

Patent' Having thus described my invention, '1 claim as new and desire to secure by Letters 1. As a new article of manufacture a novel composition of matter composed of=one part I of peroxid. of the alkali metals and four parts of anhydrous carbonate of the alkali metals and existing in form of owder.

2. As a new article 0 manufacture a novel composition of matter composed of'one part of peroxid of sodium and f our arts of anhydrous carbonate of alkali meta s and existing in form of powder. I

3; As a'novel com osition of matter a dry powder composed 6 one art of peroxid of sodium and four partsof an ydrous carbonate of sodium.

Signed at-New York, N. Y. this 6th day of June, 1904. AUGUST E. NIENSTADT. Witnesses HATTIE NICHOLAS CELIA, 

